Improvement in preseeve-jaes



i @Hitch tets zttnt @time F. JOSEPH SHEFFERLY, F DETROIT., MICHIGAN.

' Leen-S Pimm Nt. 73,202, am January 7, 186s.

IMPROVEMENT IN PRESENTE-JARS.

dlgs dnhul m'ttteh in im this lltttcts rtmt mit mating grd nf tigt smut.

TO AALL WHOM I'l MAY CONOERN:

Be it known that I, F. JOSEPH SHEFIERLY, of Detroit, in the county of Wayne, and Stn-te of Michigan, have invented .n new and improved Preserve-Jar; and I do hereby declare that the following is a. full, clear, and exaict description thereof, which will enable those skilled in the art to make and use tbe same, reference boing had to the accompanying drawings, forming part of this specification.

This invention relates to :i new and improved method of manufacturing jars for preserving fruits and other articles of diet of a. similar nature; and it consists in the novel and improved method of sealing or securing the cover of thejar to the neck, as will be hereinafter described. l

Figure 1 represents afvertical Asection of a. preserve-jar, with the top or cover secured according to my invention. i

Figure 2 is a. top view of the cover, showing the ears or lugs by which it is turned in and out of the neck, in the act of sealing and unsealingf I Figure 3 is a. bottom-view of the cover, showing two curvedinclined planes, theinclines of which are placed in opposite directions. .l

Similar letters. of reference indicate corresponding parts.

A represents the jar, and B the cover. The forni of the neck of the jor is seen in iig.-`l',a.t C, andthe oblique linea a represents the upper andthe lower surfaces of two semicircular inclined planes, which surround the inner surface ofthe neck. 4

It will be seen that the neck is shelving, or inclines inward, and the upper portion of` the cover is of corresponding form,as seen at b, so that, when packing is inserted between these two surfaces, it would become tightly wedged if thev cover should be raised. New this is exactly my method of sealing the jor.

d represents a. ring of rubber or other suitable pecking.d The inclined planes or wedges on the cover and in the neck (two on each) are placed in relation to each other, and act upon euch other like the threads of a. screw-bolt and nut. The cover drops down in to the neck-ot` the jur, as seen in the drawing, tig. 1, with the inclines on each part in contact with each other, so that, by turning thev cover to the right, it is raised, and lowered if turned vto the left.

To seal the can, the rubber ring diis placed on the cover, as seen in the drawing, (when the cover is nt its lowest positon,) and then crowded down to the bottom of the space z', `when the cover is secured by turning it, which presses the pnckings tightly against the neck of the jnr, thus sealing ff represent lugs or ears on the cover, which allows a. stick to be used :is wrench for'tightening or loosening it.

By this method of sealing, glass jars and glass covers may be used with the greatest facility, and covers which vary in size may be used on the snmejzxr without inconvenience. To nnsezil the jar, the cover is turned to the left, which loosens tbe packing, which is readily removed, when the cover is taken out without difficulty.

Having thus described my invention, I claim aspen', and desire to secure by Letters Pattent- 'Seuling a preserve-jar by. raising the cover in the neck of the jor, instead of lowering it, substantially as described.

F. JOS. SHEFFERLY.V

Witnesses:

JOHN B. lSnnFrnRL-r,

' JOHN HENK. 

